13261003 has 16 divisors (see below), whose sum is σ = 16395264. Its totient is φ = 10465920.

The previous prime is 13260983. The next prime is 13261009. The reversal of 13261003 is 30016231.

13261003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13261003 - 2⁹ = 13260491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13261009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4408 + ... + 6778.

It is an arithmetic number, because the mean of its divisors is an integer number (1024704).

Almost surely, 2^13261003 is an apocalyptic number.

13261003 is a deficient number, since it is larger than the sum of its proper divisors (3134261).

13261003 is a wasteful number, since it uses less digits than its factorization.

13261003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2442.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 13261003 is about 3641.5660092878. The cubic root of 13261003 is about 236.6966571353.

Adding to 13261003 its reverse (30016231), we get a palindrome (43277234).

The spelling of 13261003 in words is "thirteen million, two hundred sixty-one thousand, three".